New azodisperse dyes with thiazole, thiophene, pyridone and pyrazolone moiety for dyeing polyester fabrics

Metwally, M. A.; Abdel‐Galil, Ebrahim; Metwally, Amira; Amer, F. A.

doi:10.1016/j.dyepig.2011.07.009

Cited by 60 publications

(27 citation statements)

References 15 publications

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“…IR spectra were recorded on Perkin-Elmer 1600 FTIR in KBr pellets. 1 H NMR spectra were taken on a Bruker Avance II 400 NMR MHz in DMSO as solvent and TMS as internal standard and elemental analysis of "Nitrogen" was carried on Carlo Erba 1108 instrument at SAIF Central Instrumentation Laboratory, Panjab University, Chandigarh. Absorption spectra of the dyes were recorded on a Shimadzu UV-1800 spectrophotometer in DMSO and water.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and characterization of monoazo pyrazolone dyes based on 1,3,4-thiadiazole and their dyeing performance on polyester fabric

M¹,

Patel²,

Malik³

2018

juc

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Here in this paper we report a new series of 1,3,4-thiadiazole based heterocyclic monoazo dyes which have been derived by the diazotization of N 4 -(5-benzyl-1,3,4-thiadiazol-2-yl)-1,3-thiazole-2,4-diamine with various phenyl pyrazolone as coupling components. The structure of the synthesized dyes was characterized by elemental analysis, IR, 1 H NMR and UV spectroscopy with a view to determine their chemical structure. All the synthesized compounds were evaluated for their dyeing performance and fastness properties. The synthesized disperse dyes were found to possess very good dyeing properties.

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Section: Methodsmentioning

confidence: 99%

“…Disperse dyes are very important class of dyes due to their brilliancy, wide range of hue and excellent fastness properties 1,2 . They are used for dyeing hydrophobic fibres like nylon, polyester and acrylic fibres from an aqueous dispersion 3,4 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of monoazo pyrazolone dyes based on 1,3,4-thiadiazole and their dyeing performance on polyester fabric

M¹,

Patel²,

Malik³

2018

juc

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“…Owing to their importance andu sefulness,anumber of methods for the preparation of pyrazoles have been developed. [10] Pyrazoles bearing an azo group (azopyrazoles) are also found as the core structurei nm any food colorings, [11] dyestuffs, [12] and bioactive molecules ( Figure 2). [13] They exhibited ab road spectrum of biologicalp roperties such as antibacterial, [14] antifungal [15] and HIV-1 inhibitory activities.…”

Section: Introductionmentioning

confidence: 99%

Construction of Multifunctionalized Azopyrazoles by Silver‐ Catalyzed Cascade Reaction of Diazo Compounds

Pandit

Lee

2015

Adv Synth Catal

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Av ariety of multisubstituted azopyrazoles were synthesized in good yield from an efficient onepot silver trifluoromethanesulfonate (AgOTf)-catalyzed cascade reactiono fa-diazo-b-keto esters with two arylhydrazines or twoa rylhydrazine hydrochlorides.T his cascade reactioni ncluded pyrazolone formation, N À Hi nsertion, and oxidation. Fort he synthesis of more diverse azopyrazoles bearing two different aromatic rings,t he silver(I)-catalyzed cascade reactiono f4 -diazopyrazol-3-one with arylhydrazine hydrochloridesw as also developed. Thea dvantages of these methodologies are easy handling, mild reaction conditions,a nd an effective and non-toxic catalyst usage.

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“…These dyes showed high ability as disperse dyes for dyeing polyester fabrics with acceptable fastness properties. 172 Diazotized aryl amines were coupled with 2-amino-4-substituted-thiazoles 3 to give 5-arylazo-2-aminothiazoles 120, which on reaction with different reagents, such as benzoyl chloride and acetic anhydride yielded the corresponding 2-(N-benzoylamino)-5-arylazothiazole derivatives 121 and 2-(N-acetylamino)-5-arylazothiazole 122. These mono azo dyes were applied to polyester as disperse dyes and their fastness properties were evaluated.…”

Section: Azo Coupling Reactionsmentioning

confidence: 99%

Recent Developments and Biological Activities of 2-Aminothiazole Derivatives

Khalifa

2018

ACSi

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Aminothiazole nuclei and their various derivatives have been long used as precursors for the synthesis of biologically active molecules. As a typical heterocyclic amine, 2-aminothiazole is a cornerstone for the synthesis of many compounds, including sulfur drugs, biocides, fungicides, various types of dyes for synthetic fibers and chemical reaction accelerators and as intermediates in the synthesis of antibiotics, where a large number of 2-aminothiazoles have been substituted with different groups for various pharmaceutical purposes, besides their activity as corrosion inhibitors for mild steel protection as well. The synthetic utility of 2-amino-4-substituted-thiazoles, their reactions and biological activities have been surveyed and are presented in this review.

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New azodisperse dyes with thiazole, thiophene, pyridone and pyrazolone moiety for dyeing polyester fabrics

Cited by 60 publications

References 15 publications

Synthesis and characterization of monoazo pyrazolone dyes based on 1,3,4-thiadiazole and their dyeing performance on polyester fabric

Synthesis and characterization of monoazo pyrazolone dyes based on 1,3,4-thiadiazole and their dyeing performance on polyester fabric

Construction of Multifunctionalized Azopyrazoles by Silver‐ Catalyzed Cascade Reaction of Diazo Compounds

Recent Developments and Biological Activities of 2-Aminothiazole Derivatives

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